/**
 * Created by PanJiaChen on 16/11/18.
 */

/**
 * Parse the time to string
 * @param {(Object|string|number)} time
 * @param {string} cFormat
 * @returns {string | null}
 */
export function parseTime(time, cFormat) {
  if (arguments.length === 0) {
    return null
  }
  const format = cFormat || '{y}-{m}-{d} {h}:{i}:{s}'
  let date
  if (typeof time === 'object') {
    date = time
  } else {
    if ((typeof time === 'string') && (/^[0-9]+$/.test(time))) {
      time = parseInt(time)
    }
    if ((typeof time === 'number') && (time.toString().length === 10)) {
      time = time * 1000
    }
    date = new Date(time)
  }
  const formatObj = {
    y: date.getFullYear(),
    m: date.getMonth() + 1,
    d: date.getDate(),
    h: date.getHours(),
    i: date.getMinutes(),
    s: date.getSeconds(),
    a: date.getDay()
  }
  const time_str = format.replace(/{([ymdhisa])+}/g, (result, key) => {
    const value = formatObj[key]
    // Note: getDay() returns 0 on Sunday
    if (key === 'a') {
      return ['日', '一', '二', '三', '四', '五', '六'][value]
    }
    return value.toString().padStart(2, '0')
  })
  return time_str
}

/**
 * @param {number} time
 * @param {string} option
 * @returns {string}
 */
export function formatTime(time, option) {
  if (('' + time).length === 10) {
    time = parseInt(time) * 1000
  } else {
    time = +time
  }
  const d = new Date(time)
  const now = Date.now()

  const diff = (now - d) / 1000

  if (diff < 30) {
    return '刚刚'
  } else if (diff < 3600) {
    // less 1 hour
    return Math.ceil(diff / 60) + '分钟前'
  } else if (diff < 3600 * 24) {
    return Math.ceil(diff / 3600) + '小时前'
  } else if (diff < 3600 * 24 * 2) {
    return '1天前'
  }
  if (option) {
    return parseTime(time, option)
  } else {
    return (
      d.getMonth() +
      1 +
      '月' +
      d.getDate() +
      '日' +
      d.getHours() +
      '时' +
      d.getMinutes() +
      '分'
    )
  }
}

/**
 * @param {string} url
 * @returns {Object}
 */
export function getQueryObject(url) {
  url = url == null ? window.location.href : url
  const search = url.substring(url.lastIndexOf('?') + 1)
  const obj = {}
  const reg = /([^?&=]+)=([^?&=]*)/g
  search.replace(reg, (rs, $1, $2) => {
    const name = decodeURIComponent($1)
    let val = decodeURIComponent($2)
    val = String(val)
    obj[name] = val
    return rs
  })
  return obj
}

/**
 * @param {string} input value
 * @returns {number} output value
 */
export function byteLength(str) {
  // returns the byte length of an utf8 string
  let s = str.length
  for (var i = str.length - 1; i >= 0; i--) {
    const code = str.charCodeAt(i)
    if (code > 0x7f && code <= 0x7ff) s++
    else if (code > 0x7ff && code <= 0xffff) s += 2
    if (code >= 0xDC00 && code <= 0xDFFF) i--
  }
  return s
}

/**
 * @param {Array} actual
 * @returns {Array}
 */
export function cleanArray(actual) {
  const newArray = []
  for (let i = 0; i < actual.length; i++) {
    if (actual[i]) {
      newArray.push(actual[i])
    }
  }
  return newArray
}

/**
 * @param {Object} json
 * @returns {Array}
 */
export function param(json) {
  if (!json) return ''
  return cleanArray(
    Object.keys(json).map(key => {
      if (json[key] === undefined) return ''
      return encodeURIComponent(key) + '=' + encodeURIComponent(json[key])
    })
  ).join('&')
}

/**
 * @param {string} url
 * @returns {Object}
 */
export function param2Obj(url) {
  const search = url.split('?')[1]
  if (!search) {
    return {}
  }
  return JSON.parse(
    '{"' +
    decodeURIComponent(search)
    .replace(/"/g, '\\"')
    .replace(/&/g, '","')
    .replace(/=/g, '":"')
    .replace(/\+/g, ' ') +
    '"}'
  )
}

/**
 * @param {string} val
 * @returns {string}
 */
export function html2Text(val) {
  const div = document.createElement('div')
  div.innerHTML = val
  return div.textContent || div.innerText
}

/**
 * Merges two objects, giving the last one precedence
 * @param {Object} target
 * @param {(Object|Array)} source
 * @returns {Object}
 */
export function objectMerge(target, source) {
  if (typeof target !== 'object') {
    target = {}
  }
  if (Array.isArray(source)) {
    return source.slice()
  }
  Object.keys(source).forEach(property => {
    const sourceProperty = source[property]
    if (typeof sourceProperty === 'object') {
      target[property] = objectMerge(target[property], sourceProperty)
    } else {
      target[property] = sourceProperty
    }
  })
  return target
}

/**
 * @param {HTMLElement} element
 * @param {string} className
 */
export function toggleClass(element, className) {
  if (!element || !className) {
    return
  }
  let classString = element.className
  const nameIndex = classString.indexOf(className)
  if (nameIndex === -1) {
    classString += '' + className
  } else {
    classString =
      classString.substr(0, nameIndex) +
      classString.substr(nameIndex + className.length)
  }
  element.className = classString
}

/**
 * @param {string} type
 * @returns {Date}
 */
export function getTime(type) {
  if (type === 'start') {
    return new Date().getTime() - 3600 * 1000 * 24 * 90
  } else {
    return new Date(new Date().toDateString())
  }
}

/**
 * @param {Function} func
 * @param {number} wait
 * @param {boolean} immediate
 * @return {*}
 */
export function debounce(func, wait, immediate) {
  let timeout, args, context, timestamp, result

  const later = function () {
    // 据上一次触发时间间隔
    const last = +new Date() - timestamp

    // 上次被包装函数被调用时间间隔 last 小于设定时间间隔 wait
    if (last < wait && last > 0) {
      timeout = setTimeout(later, wait - last)
    } else {
      timeout = null
      // 如果设定为immediate===true，因为开始边界已经调用过了此处无需调用
      if (!immediate) {
        result = func.apply(context, args)
        if (!timeout) context = args = null
      }
    }
  }

  return function (...args) {
    context = this
    timestamp = +new Date()
    const callNow = immediate && !timeout
    // 如果延时不存在，重新设定延时
    if (!timeout) timeout = setTimeout(later, wait)
    if (callNow) {
      result = func.apply(context, args)
      context = args = null
    }

    return result
  }
}

/**
 * This is just a simple version of deep copy
 * Has a lot of edge cases bug
 * If you want to use a perfect deep copy, use lodash's _.cloneDeep
 * @param {Object} source
 * @returns {Object}
 */
export function deepClone(source) {
  if (!source && typeof source !== 'object') {
    throw new Error('error arguments', 'deepClone')
  }
  const targetObj = source.constructor === Array ? [] : {}
  Object.keys(source).forEach(keys => {
    if (source[keys] && typeof source[keys] === 'object') {
      targetObj[keys] = deepClone(source[keys])
    } else {
      targetObj[keys] = source[keys]
    }
  })
  return targetObj
}

/**
 * @param {Array} arr
 * @returns {Array}
 */
export function uniqueArr(arr) {
  return Array.from(new Set(arr))
}

/**
 * @returns {string}
 */
export function createUniqueString() {
  const timestamp = +new Date() + ''
  const randomNum = parseInt((1 + Math.random()) * 65536) + ''
  return (+(randomNum + timestamp)).toString(32)
}

/**
 * Check if an element has a class
 * @param {HTMLElement} elm
 * @param {string} cls
 * @returns {boolean}
 */
export function hasClass(ele, cls) {
  return !!ele.className.match(new RegExp('(\\s|^)' + cls + '(\\s|$)'))
}

/**
 * Add class to element
 * @param {HTMLElement} elm
 * @param {string} cls
 */
export function addClass(ele, cls) {
  if (!hasClass(ele, cls)) ele.className += ' ' + cls
}

/**
 * Remove class from element
 * @param {HTMLElement} elm
 * @param {string} cls
 */
export function removeClass(ele, cls) {
  if (hasClass(ele, cls)) {
    const reg = new RegExp('(\\s|^)' + cls + '(\\s|$)')
    ele.className = ele.className.replace(reg, ' ')
  }
}


// 获取 中文日历数字
export function getCNTimestamp(month) {
  let i = Number(month);
  let cnList = [ '一', '二', '三', '四', '五', '六', '七', '八', '九', '十', '十一', '十二' ];
  if( i <= 12 && i >= 1 ) {
    return cnList[ i - 1 ];
  }else {
    return null
  }

}


/**
 * @原算法 https://www.jianshu.com/p/57ca061f3987
 * @根据该作者的修改成JS版的
 * @time 2019-7-17 09:58:42
 * @description bd09 转WGS84,精准度高
 * */
const CoordinateUtil = {
	x_pi: 3.14159265358979324 * 3000.0 / 180.0,
	//pai
	pi: 3.1415926535897932384626,
	//离心率
	ee: 0.00669342162296594323,
	//长半轴
	a: 6378245.0,
	//百度转国测局
	bd09togcj02: function(bd_lon, bd_lat) {
		var x = bd_lon - 0.0065;
		var y = bd_lat - 0.006;
		var z = Math.sqrt(x * x + y * y) - 0.00002 * Math.sin(y * CoordinateUtil.x_pi);
		var theta = Math.atan2(y, x) - 0.000003 * Math.cos(x * CoordinateUtil.x_pi);
		var gg_lng = z * Math.cos(theta);
		var gg_lat = z * Math.sin(theta);
		return {
			lng: gg_lng,
			lat: gg_lat
		}
	},
	//国测局转百度
	gcj02tobd09: function(lng, lat) {
	    var z = Math.sqrt(lng * lng + lat * lat) + 0.00002 * Math.sin(lat * CoordinateUtil.x_pi);
	    var theta = Math.atan2(lat, lng) + 0.000003 * Math.cos(lng * CoordinateUtil.x_pi);
		var bd_lng = z * Math.cos(theta) + 0.0065;
		var bd_lat = z * Math.sin(theta) + 0.006;
		return {
			lng: bd_lng,
			lat: bd_lat
		};
	},
	//国测局转84
	gcj02towgs84: function(lng, lat) {
	    var dlat = CoordinateUtil.transformlat(lng - 105.0, lat - 35.0);
	    var dlng = CoordinateUtil.transformlng(lng - 105.0, lat - 35.0);
		var radlat = lat / 180.0 * CoordinateUtil.pi;
		var magic = Math.sin(radlat);
		magic = 1 - CoordinateUtil.ee * magic * magic;
		var sqrtmagic = Math.sqrt(magic);
		dlat = (dlat * 180.0) / ((CoordinateUtil.a * (1 - CoordinateUtil.ee)) / (magic * sqrtmagic) * CoordinateUtil.pi);
		dlng = (dlng * 180.0) / (CoordinateUtil.a / sqrtmagic * Math.cos(radlat) * CoordinateUtil.pi);
		var mglat = lat + dlat;
		var mglng = lng + dlng;
		return {
			lng: lng * 2 - mglng,
			lat: lat * 2 - mglat
		};
	},
	//经度转换
	transformlat: function(lng, lat) {
		var ret = -100.0 + 2.0 * lng + 3.0 * lat + 0.2 * lat * lat + 0.1 * lng * lat + 0.2 * Math.sqrt(Math.abs(lng));
		ret += (20.0 * Math.sin(6.0 * lng * CoordinateUtil.pi) + 20.0 * Math.sin(2.0 * lng * CoordinateUtil.pi)) * 2.0 / 3.0;
		ret += (20.0 * Math.sin(lat * CoordinateUtil.pi) + 40.0 * Math.sin(lat / 3.0 * CoordinateUtil.pi)) * 2.0 / 3.0;
		ret += (160.0 * Math.sin(lat / 12.0 * CoordinateUtil.pi) + 320 * Math.sin(lat * CoordinateUtil.pi / 30.0)) * 2.0 / 3.0;
		return ret;
	},
	//纬度转换
	transformlng: function(lng, lat) {
		var ret = 300.0 + lng + 2.0 * lat + 0.1 * lng * lng + 0.1 * lng * lat + 0.1 * Math.sqrt(Math.abs(lng));
		ret += (20.0 * Math.sin(6.0 * lng * CoordinateUtil.pi) + 20.0 * Math.sin(2.0 * lng * CoordinateUtil.pi)) * 2.0 / 3.0;
		ret += (20.0 * Math.sin(lng * CoordinateUtil.pi) + 40.0 * Math.sin(lng / 3.0 * CoordinateUtil.pi)) * 2.0 / 3.0;
		ret += (150.0 * Math.sin(lng / 12.0 * CoordinateUtil.pi) + 300.0 * Math.sin(lng / 30.0 * CoordinateUtil.pi)) * 2.0 / 3.0;
		return ret;
	},
	getWgs84xy:function(x,y){
		//先转 国测局坐标
		var doubles_gcj = CoordinateUtil.bd09togcj02(x, y); //（x 117.   y 36. ）
		//国测局坐标转wgs84
		var doubles_wgs84 = CoordinateUtil.gcj02towgs84(doubles_gcj.lng, doubles_gcj.lat);
		//返回 纠偏后 坐标
		 
		return doubles_wgs84;
	}
}


  export { CoordinateUtil }

